Thats how you do it😎

Python probably uses a dozen variables to actually do it. The challenge is obviously to reduce memory requirements of the is operation.

@Wozza365 No, it probably adds 2 temporary variables

a ^= b
b ^= a
a ^= b

@Mitiko yes thats the issue

@Wozza365 @Mitiko @Batburger
No, it does not use any extra variables. It just creates a tuple of right hand side and compares and assigns to left hand side.
More details->
https://stackoverflow.com/questions...

@HakunaMatata Well it still greates a Tuple which requires to be allocated in memory.

@localghost Let's hope that a!=b...

@tomiolah1998

Yes or a will be 0

@Wozza365 by thinking of it that way ... I am really curious about how python is handling this behind the scenes ...
Without punishing in some language-war-discussions.

I am using python myself often for some things, but all are totally unrelated to realtime, memory performance and I just got interested about how these things are handled in the back ...

Because,
Placing the value of b in a, makes it unable to assign the value of a in b, since a is already b. So a is basically replaced by b and we lost the old value of a

And in ES6:
[a, b] = [b, a];

Why swap variables tho?